Battery formation contact quick change device

Abstract

The utility model relates to battery formation technical field, concretely is a kind of battery formation contact quick-change device, including support plate and contact, the surface of support plate is connected with slider and passes through, the lower surface of support plate is equipped with screw hole, the both sides of slider are connected with screw rod and pass through, slider is inserted with support plate by screw rod and screw hole, the surface of slider is connected with support cylinder and passes through, the outer surface of support cylinder is sleeved with sleeve, the outer surface of sleeve is sleeved with connecting cylinder.The utility model adopts modularization quick-change design and standardization interface, makes replacement time shorten to 1 minute;Built-in adaptive contact structure to compensate the deformation or deviation of battery pole, ensure contact stability;Key components adopt wear-resistant high-temperature material to enhance conductivity and arc resistance;Integrated safety interlock function prevents energization when not locked;With strong compatibility, can be adapted to a variety of battery specifications, meet the flexible production line demand.

Description

Technical Field

[0001] This utility model relates to the field of battery formation technology, specifically to a quick-change device for battery formation contacts. Background Technology

[0002] In the production process of new energy batteries, battery formation is a key process that determines battery performance (such as capacity, cycle life, and safety). By applying specific current and voltage to the battery terminals, the activation and structural stabilization of the active materials inside the battery are achieved. The contacts, as the direct carrier of current transmission between the formation equipment and the battery terminals, directly affect the quality of battery formation, production cycle time, and production line operating costs due to their performance and operational efficiency. With the rapid development of the new energy industry, the demand for battery production capacity continues to increase, and production lines are gradually upgrading towards higher speeds and greater flexibility. However, existing battery formation contacts are gradually revealing various technical defects, making it difficult to meet actual production needs. For example, the contact replacement problem in the battery formation process seriously affects production efficiency. Traditional contacts, which use bolt fixing or an integral structure, have the following pain points: long replacement time, frequent contact failures, and high maintenance costs. Specifically, the specific problems are as follows:

[0003] I. Traditional contact replacement is inefficient, severely restricting production line capacity.

[0004] Existing battery formation contacts mostly adopt two mainstream structural designs, both of which have the significant drawback of time-consuming replacement:

[0005] Bolted contact: This type of contact is fixed to the support plate of the formation equipment by multiple sets of bolts. When the contact needs to be replaced due to wear, arc erosion, etc., the bolts need to be removed one by one with the help of tools (usually 4-8 bolts need to be removed for a single contact). After the replacement is completed, the bolts are tightened and reset one by one. The replacement time for a single contact generally exceeds 15 minutes. If multiple sets of contacts are damaged at the same time in the production line (such as concentrated loss during batch formation), the machine needs to be shut down for a long time for maintenance, which will cause the formation process to be interrupted and seriously affect the overall capacity of the production line. For example, for a formation production line that processes 5,000 batteries per day, the downtime caused by a single replacement of multiple contacts can result in a loss of more than 200 batteries.

[0006] Integrated contact structure: Some formation equipment uses an integrated contact assembly design. The contact and the support structure cannot be separated. When wear or damage occurs in a part of the contact (such as the contact end), the entire contact assembly needs to be removed and replaced. This not only prolongs the replacement process, but also wastes materials from the undamaged parts, further reducing maintenance efficiency.

[0007] Second, poor contact stability can easily lead to formation quality problems and equipment damage.

[0008] During battery formation, stable contact between the contacts and the battery terminals is crucial to ensuring uniform current transmission. However, traditional contacts generally lack self-adjusting capabilities, leading to frequent contact problems.

[0009] Insufficient adaptability of terminals: During battery production, terminals are prone to slight deformation due to stamping, assembly and other processes (such as uneven end face or axial offset). The contact end of traditional contacts has a fixed structure and cannot adaptively compensate for the deformation of the terminals, resulting in an unstable actual contact area between the contacts and the terminals. When the contact area is too small, the local current density is too high, which can easily generate an electric arc, burn the contact surface and the battery terminals, not only shortening the service life of the contacts, but also potentially causing quality defects such as local overheating and uneven capacity during battery formation.

[0010] Rapid decay of contact reliability: Traditional contacts are mostly made of a single metal material (such as pure copper). After long-term use, the surface is prone to oxidation to form an oxide layer, or burn pits may be generated due to electric arc, which further aggravates poor contact. Frequent surface polishing and maintenance are required, increasing the workload of operation and maintenance.

[0011] Third, high maintenance costs make it difficult to adapt to the needs of flexible production lines.

[0012] The structural design of traditional contacts also leads to high maintenance costs and a lack of flexibility and adaptability.

[0013] High material and maintenance costs: Local damage to integral structure contacts requires replacement of the entire unit, and the procurement cost of a single component is usually 3-5 times that of a split type; frequent disassembly of bolt-fixed contacts not only consumes manpower, but also easily leads to bolt stripping and wear of support plate screw holes, requiring replacement of the support structure as well, further increasing maintenance costs;

[0014] Insufficient flexibility: With the diversification of battery specifications (such as terminal spacing and diameter), the fixed structure of traditional contacts is difficult to quickly adjust the installation position or replace the contact end. If it is necessary to adapt to new battery specifications, the entire contact assembly needs to be redesigned and replaced, which cannot meet the flexible production requirements of modern production lines for "multiple specifications and fast switching", increasing the time and financial costs of production line upgrades.

[0015] In summary, current battery formation contacts suffer from significant technical deficiencies in terms of replacement efficiency, contact stability, maintenance costs, and flexibility, becoming key bottlenecks restricting efficiency improvement, quality stability, and cost control in battery formation production lines. Therefore, there is an urgent need for a formation contact device with rapid replacement capability, adaptive contact function, low maintenance costs, and compatibility with multiple battery specifications to address the shortcomings of existing technologies and meet the development needs of new energy battery production lines. Utility Model Content

[0016] The purpose of this invention is to provide a quick-change device for battery formation contacts, so as to solve the problems of long replacement time, frequent poor contact, and high maintenance cost mentioned in the background art.

[0017] To achieve the above objectives, this utility model provides the following technical solution: a quick-change device for battery formation contacts, comprising a support plate and contacts. A slider is connected through the surface of the support plate, and a screw hole is provided on the lower surface of the support plate. Screws are connected through both sides of the slider, and the slider is inserted into the support plate through the screws and screw holes. A support cylinder is connected through the surface of the slider, and a sleeve is fitted onto the outer surface of the support cylinder. A connecting cylinder is fitted onto the outer surface of the sleeve. A contact is fixedly connected to the bottom end of the connecting cylinder, and a telescopic spring is fitted onto the outer surface of the connecting cylinder. A compensation plate is provided on the inner side of the contact. A movable contact plate is connected through the connection between the contact and the connecting cylinder, and a support spring is fitted onto the outer surface of the movable contact plate. A contact point is fixedly connected to the surface of the movable contact plate. A fixed contact plate is fixedly connected to the inner wall of the connecting cylinder, and a connecting wire is electrically connected to the surface of the fixed contact plate.

[0018] Preferably, one or more sliders are connected to the surface of the support plate, and the connecting cylinder is elastically slidably connected by a telescopic spring and a sleeve.

[0019] Preferably, the slider is fixedly connected to two sides by a fixing plate, the screw passes through the fixing plate and is threadedly connected to the screw hole, and the contact acts on the support plate below through the slider.

[0020] Preferably, the contact is cylindrical, the surface of the compensation plate is arc-shaped, the compensation plate is evenly distributed on the inner side of the contact, and the material of the compensation plate is copper-tungsten alloy.

[0021] Preferably, the contact is slidably connected to the slider via a connecting cylinder and a sleeve, the cross-section of the movable contact plate is in the shape of an "I", and the movable contact plate acts on the middle position of the contact.

[0022] Preferably, the movable contact plate is elastically slidably connected to the contact via a support spring, the fixed contact plate acts above the movable contact plate via a connecting cylinder, the connecting wire is distributed on the fixed contact plate and the movable contact plate, and the connecting wire passes through the surface of the support cylinder.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. Adopting a modular quick-change design and standardized interface, the replacement time is reduced to less than 1 minute; the built-in adaptive contact structure compensates for the deformation or deviation of the battery terminals to ensure stable contact; key components are made of wear-resistant and high-temperature resistant materials to enhance conductivity and arc resistance; integrated safety interlock function prevents power from being applied when not locked; it has strong compatibility and can be adapted to various battery specifications to meet the needs of flexible production lines. Attached Figure Description

[0025] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0026] Figure 2 This is a partial bottom-view three-dimensional exploded view of the structure of this utility model;

[0027] Figure 3 This is a three-dimensional structural schematic diagram of the slider of this utility model;

[0028] Figure 4 This is a three-dimensional cross-sectional view of the contact structure of this utility model;

[0029] Figure 5 This utility model Figure 4 A partial three-dimensional schematic diagram of the connection structure between the connecting cylinder and the contacts.

[0030] In the diagram: 1. Support plate; 2. Slider; 3. Connecting cylinder; 4. Contact; 41. Compensation plate; 5. Screw; 51. Screw hole; 6. Telescopic spring; 7. Support cylinder; 71. Sleeve; 8. Connecting wire; 81. Fixed contact plate; 82. Movable contact plate; 83. Support spring; 84. Contact point. Detailed Implementation

[0031] Please see Figure 1-5 One embodiment provided by this utility model:

[0032] A quick-change device for battery formation contacts includes a support plate 1 and contacts 4. A slider 2 is connected through the surface of the support plate 1. A screw hole 51 is provided on the lower surface of the support plate 1. Screws 5 are connected through the two sides of the slider 2. The slider 2 is inserted into the support plate 1 through the screws 5 and the screw hole 51. A support cylinder 7 is connected through the surface of the slider 2. A sleeve 71 is sleeved on the outer surface of the support cylinder 7. A connecting cylinder 3 is sleeved on the outer surface of the sleeve 71. The bottom end of the connecting cylinder 3 is fixedly connected to the contacts 4. A telescopic spring 6 is sleeved on the outer surface of the connecting cylinder 3. A compensation plate 41 is provided on the inner side of the contacts 4. A movable spring is connected through the connection position between the contacts 4 and the connecting cylinder 3. The outer surface of the movable contact plate 82 is fitted with a support spring 83, and the surface of the movable contact plate 82 is fixedly connected with a contact point 84. The inner wall of the connecting cylinder 3 is fixedly connected with a fixed contact plate 81, and the surface of the fixed contact plate 81 is electrically connected with a connecting wire 8. Through the connection of the support plate 1 and the slider 2, and the connection of the screw 5 and the screw hole 51, the connection support effect of the slider 2 on the support plate 1 is realized, which facilitates quick disassembly and assembly. The contact 4 and the compensation plate 41 form an adaptive contact structure. The connecting wire 8, the fixed contact plate 81, the movable contact plate 82, the support spring 83 and the contact point 84 form an integrated safety interlock function.

[0033] Furthermore, the slider 2 is connected to the surface of the support plate 1 in one or more groups, and the connecting cylinder 3 is elastically slidably connected to the sleeve 71 through the telescopic spring 6. Through the connection between the connecting cylinder 3 and the telescopic spring 6, the elastic connection effect between the connecting cylinder 3 and the sleeve 71 is achieved under the action of the telescopic spring 6, thereby achieving the elastic control effect on the position of the contact 4 on the support plate 1.

[0034] Furthermore, fixed plates are fixedly connected to both sides of the slider 2, and screw 5 passes through the fixed plate and is threadedly connected to screw hole 51. Contact 4 acts under the support plate 1 through the slider 2. Through the connection of the fixed plates on both sides of the slider 2 and screw 5, and the connection of screw 5 and screw hole 51, it is convenient to quickly install and remove the slider 2 on the support plate 1.

[0035] Furthermore, the contact 4 is cylindrical in shape, and the surface of the compensation plate 41 is arc-shaped. The compensation plate 41 is evenly distributed on the inner side of the contact 4. The material of the compensation plate 41 is copper-tungsten alloy. Through the connection between the contact 4 and the compensation plate 41, the internal working space of the contact 4 is changed under the action of the compensation plate 41, so that it can better adapt to the battery terminal and improve its application range and performance.

[0036] Furthermore, the contact 4 is slidably connected to the slider 2 through the connecting cylinder 3 and the sleeve 71. The cross-section of the movable contact plate 82 is in the shape of an "I". The movable contact plate 82 acts at the middle position of the contact 4. Through the connection between the contact 4 and the connecting cylinder 3, the working position of the contact 4 can be adjusted under the elastic sliding of the connecting cylinder 3 and the sleeve 71, so as to achieve the effect of adaptive use.

[0037] Furthermore, the movable contact plate 82 is elastically slidably connected to the contact 4 via the support spring 83, and the fixed contact plate 81 acts above the movable contact plate 82 via the connecting cylinder 3. The connecting wire 8 is distributed on the fixed contact plate 81 and the movable contact plate 82, and the connecting wire 8 passes through the surface of the support cylinder 7. Through the connection between the movable contact plate 82 and the support spring 83, the elastic sliding effect of the movable contact plate 82 in the position of action within the contact 4 is realized. Under the abutting contact of the contact point 84 and the fixed contact plate 81, the circuit connection is completed, preventing the contact 4 and the battery terminal from being energized when not locked.

[0038] Working principle: During the battery formation process, the slider 2 is connected to the support plate 1, and under the action of the screw 5 and screw hole 51, the slider 2 can be quickly installed and removed from the support plate 1, improving its efficiency. Under the connection of the connecting cylinder 3 and the contact 4, the contact 4 is self-adapted by the telescopic spring 6. Under the connection of the contact 4 and the compensation plate 41, the connection between the contact 4 and the battery terminal is facilitated. Under the connection of the connecting wire 8 and the fixed contact plate 81, the connecting wire 8 and the movable contact plate 82 are connected. When the contact 4 and the battery terminal are connected in place, the contact point 84 and the fixed contact plate 81 make contact, completing the circuit and effectively preventing power from flowing when the contact 4 and the battery terminal are not locked, which would affect the performance.

Claims

1. A quick-change device for battery formation contacts, comprising a support plate and contacts, characterized in that: A slider is connected through the surface of the support plate. A screw hole is opened on the lower surface of the support plate. Screws are connected through both sides of the slider. The slider is inserted into the support plate through the screws and screw holes. A support cylinder is connected through the surface of the slider. A sleeve is fitted on the outer surface of the support cylinder. A connecting cylinder is fitted on the outer surface of the sleeve. A contact is fixedly connected to the bottom end of the connecting cylinder. A telescopic spring is fitted on the outer surface of the connecting cylinder. A compensation plate is provided on the inner side of the contact. A movable contact plate is connected through the position where the contact and the connecting cylinder are connected. A support spring is fitted on the outer surface of the movable contact plate. A contact point is fixedly connected to the surface of the movable contact plate. A fixed contact plate is fixedly connected to the inner wall of the connecting cylinder. A connecting wire is electrically connected to the surface of the fixed contact plate.

2. The battery formation contact quick-change device according to claim 1, characterized in that: The sliders are connected in one or more groups to the surface of the support plate, and the connecting cylinder is elastically slidably connected by a telescopic spring and a sleeve.

3. The battery formation contact quick-change device according to claim 1, characterized in that: The slider is fixedly connected to two fixed plates on both sides, the screw passes through the fixed plate and is threadedly connected to the screw hole, and the contact acts on the support plate below through the slider.

4. The battery formation contact quick-change device according to claim 1, characterized in that: The contact is cylindrical in shape, the surface of the compensation plate is arc-shaped, the compensation plate is evenly distributed on the inner side of the contact, and the material of the compensation plate is copper-tungsten alloy.

5. A quick-change device for battery formation contacts according to claim 1, characterized in that: The contact is slidably connected to the slider through a connecting cylinder and a sleeve. The cross-section of the movable contact plate is in the shape of an "I". The movable contact plate acts on the middle position of the contact.

6. The battery formation contact quick-change device according to claim 1, characterized in that: The movable contact plate is elastically slidably connected to the contact via a support spring and a contact head. The fixed contact plate acts above the movable contact plate via a connecting cylinder. The connecting wires are distributed on the fixed contact plate and the movable contact plate, and the connecting wires pass through the surface of the support cylinder.

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